陣列之進階 陣列之進階 C 語言中陣列變數的彈性帶給程式很大的效率優點， 但是也讓學 C 語言的設計者很多的困擾。 在繼續下去之前， 請先瞭解 基本的陣列 指標變數 陣列之宣告與記憶體配置 陣列及指標兩者的複合宣告是 C 語法中最複雜的部份， 初學都常常 ...
c - How to find the 'sizeof'(a pointer pointing to an array ... 2009年1月29日 - int main() { int days[] = {1,2,3,4,5}; int *ptr = days; printf("%u\n", ... No, you can't. The compiler doesn't know what the pointer is pointing to.
getting size of array from pointer c++ - Stack Overflow 2013年11月10日 - int largest(int *list, int highest_index) ... There's no way to do that. This is one good reason (among many) to use vectors instead of arrays. But if you ...
c - Size of char pointer array from function - Stack Overflow 2013年8月26日 - Using this code: #include void printSize(char *messages[]) ... Much clearer answer, relating directly to what I asked (without rudeness).
How can I get the size of an array from a pointer in C? 2008年10月24日 - if (NULL == (p = calloc(sizeof(struct mystruct) * n,1))) { /* handle error ... No, there is no way to get this information without depending strongly on ...
c++ how to get the length of a pointer array? - Stack Overflow 2013年4月2日 - char array[40] = "hello"; // size 40 int length = sizeof array / sizeof ... You can't, I'm afraid. You need to pass the length of the array to anyone who ...
Pointer to an array get size C++ - Stack Overflow 2013年1月18日 - struct array { int *elements; //elements size_t size; //number of elements } ...
[Solved] How to calculate size of array from pointer variable ... 2012年2月21日 - i have pointer of array(array which is in memory) .... Please see my article here:How to get size of array from its pointer[^]. Permalink.
sizeof - Wikipedia, the free encyclopedia When sizeof is applied to the name of a static array (not allocated through malloc), the result is the size in bytes of the whole array. This is one of the few exceptions to the rule that the name of an array is converted to a pointer to the first element
Sizeof an array in the C programming language? - Stack Overflow Why isn't the size of an array sent as a parameter the same as within main? #include void PrintSize(int p_someArray[10]); int main { int myArray[10]; printf("%d\n", sizeof(myArray)); /* As expected, 40 */ PrintSize(myArray);/* Prints 4, not 40 */ } v
